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AR-15 Rifles, Parts, Uppers & Kits

Shop AR-15 5.56 & .223 rifles, parts, uppers, & more at Palmetto State Armory. Find high-quality AR-15s, trusted brands, and expertly crafted components. Customize or build from scratch with our vast inventory of barrels, stocks, and triggers. Palmetto State Armory is your destination for the best AR-15 essentials at competitive prices.

Shop AR-15 rifles, parts, uppers, & more at Palmetto State Armory. Find high-quality guns such as AR-15 .223 rifles and AR pistols from trusted brands, and expertly crafted components. Customize or build from scratch with our vast inventory of barrels, stocks, and triggers. Palmetto State Armory is your destination for the best AR-15 essentials at competitive prices.

Shop the complete AR-15 platform at Palmetto State Armory, your destination for rifles, uppers, lowers, parts, and build kits. Whether you’re buying a factory-built rifle or assembling a custom AR-15 from the ground up, you’ll find trusted brands, proven components, and configurations for every purpose. Explore options in popular calibers like 5.56 NATO, .300 Blackout, and more. Build it your way or buy it ready to run—all at everyday low prices.

Rifles

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Uppers

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AR-15 Parts

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.338 ARC

.338 ARC
Magazines

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Pistols

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Kits

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Suppressors

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Left Handed AR-15

Left Handed AR-15
Featured Products
  1. R&D Precision AR45 Bolt Carrier Group
    R&D Precision AR45 Bolt Carrier Group
    Rating:
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    Regular Price $149.99 Special Price $49.99
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  2. Daniel Defense 5.56mm 32rd Capacity Magazine, Black – 13-072-16539-006
    Daniel Defense 5.56mm 32rd Capacity Magazine, Black – 13-072-16539-006
    Rating:
    98%
    (18)
    Regular Price $26.99 Special Price $23.99
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  3. PSA Complete Stealth Classic Lower, Wild Cat Gray
    PSA Complete Stealth Classic Lower, Wild Cat Gray
    Rating:
    98%
    (150)
    Regular Price $199.99 Special Price $119.99
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  1. Rise Armament Magazine Release Button in Patriot Blue - High-Visibility and Durable Release Button for Enhanced Functionality - RA010BLU

    Rise Armament Magazine Release Button in Patriot Blue - High-Visibility and Durable Release Button for Enhanced Functionality - RA010BLU

    Regular Price $8.99 Special Price $7.99
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  2. Rise Armament Micro Hand Stop, Spartan Bronze - Durable and Aesthetic Weapon Enhancement - RA030SB

    Rise Armament Micro Hand Stop, Spartan Bronze - Durable and Aesthetic Weapon Enhancement - RA030SB

    Regular Price $38.99 Special Price $33.99
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  3. Rise Armament Quick Detach Sling Mount - Patriot Blue - High-Quality Sling Mount - RA601BLU

    Rise Armament Quick Detach Sling Mount - Patriot Blue - High-Quality Sling Mount - RA601BLU

    Regular Price $18.99 Special Price $15.99
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  4. Rise Armament Micro Hand Stop, Patriot Blue - Stylish and Functional Accessory - RA030BLU

    Rise Armament Micro Hand Stop, Patriot Blue - Stylish and Functional Accessory - RA030BLU

    Rating:
    40%
    (1)
    Regular Price $38.99 Special Price $33.99
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  5. Magpul MS1 Lite Sling - Stealth Modern Sling with Sleek Stealth Gray Finish for Tactical Use - MAG1312-GRY

    Magpul MS1 Lite Sling - Stealth Modern Sling with Sleek Stealth Gray Finish for Tactical Use - MAG1312-GRY

    Rating:
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    Regular Price $42.99 Special Price $37.99
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  6. B5 Systems Type 22 P-Grip, Woodland Camo - Durable, Ergonomic Grip - PGR-1472

    B5 Systems Type 22 P-Grip, Woodland Camo - Durable, Ergonomic Grip - PGR-1472

    Regular Price $31.99 Special Price $27.99
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  7. B5 Systems Type 22 P-Grip, Multicam Black - Reliable and Comfortable P-Grip - PGR-1473

    B5 Systems Type 22 P-Grip, Multicam Black - Reliable and Comfortable P-Grip - PGR-1473

    Regular Price $31.99 Special Price $27.99
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  8. B5 Systems Type 23 P-Grip, Multicam Black - Grip with Enhanced Comfort and Control - PGR-1426

    B5 Systems Type 23 P-Grip, Multicam Black - Grip with Enhanced Comfort and Control - PGR-1426

    Rating:
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    (1)
    Regular Price $31.99 Special Price $27.99
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  9. B5 Systems Type 23 P-Grip, Woodland Camo - High-Performance Grip - PGR-1187

    B5 Systems Type 23 P-Grip, Woodland Camo - High-Performance Grip - PGR-1187

    Rating:
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    (3)
    Regular Price $31.99 Special Price $27.99
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  10. BCM Raider-M10 M-LOK Handguard 10", Black - Lightweight, Modular Handguard - RAIDER-M10-556-BL

    BCM Raider-M10 M-LOK Handguard 10", Black - Lightweight, Modular Handguard - RAIDER-M10-556-BL

    Regular Price $266.99 Special Price $239.99
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  11. BCM Raider-M13 M-LOK Handguard 13", Black - Durable, Versatile Handguard - RAIDER-M13-556-BLK

    BCM Raider-M13 M-LOK Handguard 13", Black - Durable, Versatile Handguard - RAIDER-M13-556-BLK

    Regular Price $275.99 Special Price $249.99
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  12. VKTR Industries VK-1 Low-Profile M-LOK Handguard 9.85", Armor Black - Compact and Efficient Handguard Solution - V40051016002R

    VKTR Industries VK-1 Low-Profile M-LOK Handguard 9.85", Armor Black - Compact and Efficient Handguard Solution - V40051016002R

    $325.99
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  13. Bowden Tactical Handguard 13", Old Glory - Patriotic, High-Performance Handguard - J23013-AF

    Bowden Tactical Handguard 13", Old Glory - Patriotic, High-Performance Handguard - J23013-AF

    Rating:
    80%
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    $181.99
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  14. Sons of Liberty Gun Works L89 M-LOK Rail 10.75", Black - Durable Rail for Enhanced Customization - L89-10.75

    Sons of Liberty Gun Works L89 M-LOK Rail 10.75", Black - Durable Rail for Enhanced Customization - L89-10.75

    Regular Price $432.99 Special Price $389.99
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  15. Strike Industries Picatinny Bi-Pod Grip, Titan - Durable Bi-Pod Grip for Enhanced Stability and Precision Shooting - SI-AR-AL-BIPOD-TITAN

    Strike Industries Picatinny Bi-Pod Grip, Titan - Durable Bi-Pod Grip for Enhanced Stability and Precision Shooting - SI-AR-AL-BIPOD-TITAN

    Regular Price $74.99 Special Price $66.99
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  16. Strike Industries Universal 3-Lug Quick Detach Base Set in Black/Silver - Versatile and Durable Detach Base for Rapid Changes - SI-BS-OPPRESSOR-U-BASE

    Strike Industries Universal 3-Lug Quick Detach Base Set in Black/Silver - Versatile and Durable Detach Base for Rapid Changes - SI-BS-OPPRESSOR-U-BASE

    Rating:
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    (1)
    $32.99
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  17. Sons of Liberty Gun Works M89 Free-Float Drive Lock M-LOK Rail 11.50", Black - Extended Free-Float Rail for Accuracy - M89-11.5

    Sons of Liberty Gun Works M89 Free-Float Drive Lock M-LOK Rail 11.50", Black - Extended Free-Float Rail for Accuracy - M89-11.5

    Regular Price $340.99 Special Price $308.99
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  18. Sons of Liberty Gun Works M89H M-LOK Rail 13" Fits Knight's Armament SR25, Black - High-Performance Handguard Upgrade - M89H-13

    Sons of Liberty Gun Works M89H M-LOK Rail 13" Fits Knight's Armament SR25, Black - High-Performance Handguard Upgrade - M89H-13

    Regular Price $422.99 Special Price $380.99
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  19. Sons of Liberty Gun Works L89 M-LOK Rail 13.75", Black - Long Rail for Versatile Applications - L89-13.75

    Sons of Liberty Gun Works L89 M-LOK Rail 13.75", Black - Long Rail for Versatile Applications - L89-13.75

    Regular Price $443.99 Special Price $399.99
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  20. Sons of Liberty Gun Works M89H M-LOK Rail 15" Fits Knight's Armament SR25, Black - Precision Rail Fits Enhanced Accuracy and Control - M89H-15

    Sons of Liberty Gun Works M89H M-LOK Rail 15" Fits Knight's Armament SR25, Black - Precision Rail Fits Enhanced Accuracy and Control - M89H-15

    Regular Price $439.99 Special Price $399.99
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  21. Sons of Liberty Gun Works Presscheck Barricade Stop, Moss Green - Tactical Stop for Improved Field Performance and Stability - BARRICADE-MOSS

    Sons of Liberty Gun Works Presscheck Barricade Stop, Moss Green - Tactical Stop for Improved Field Performance and Stability - BARRICADE-MOSS

    Regular Price $79.99 Special Price $71.99
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  22. Boyt Max-Ops Webbing Adjustable Sling, Coyote Brown - Reliable and Adjustable - PAS-30005

    Boyt Max-Ops Webbing Adjustable Sling, Coyote Brown - Reliable and Adjustable - PAS-30005

    Regular Price $15.99 Special Price $13.79
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  23. Outdoor Connection Express Paracord Sling 46" - Coyote Brown - Durable and Versatile Sling with Classic Coyote - XP-90408

    Outdoor Connection Express Paracord Sling 46" - Coyote Brown - Durable and Versatile Sling with Classic Coyote - XP-90408

    Regular Price $24.99 Special Price $21.79
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  24. Outdoor Connection Super Grip Sling - Coyote Brown - Durable Sling with Superior Grip - SGSS-90405

    Outdoor Connection Super Grip Sling - Coyote Brown - Durable Sling with Superior Grip - SGSS-90405

    Regular Price $23.99 Special Price $20.99
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  1. Rifles 2064
  2. Pistols 887
  3. Uppers 1360
  4. Kits 757
  5. Lower Receivers 714
  6. Parts 9222
  7. Suppressors 165
  8. Left Handed AR-15 7
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AR-15 Buyer's Guide: Build or Buy?

At Palmetto State Armory, we believe in the right to keep and bear arms—and the right to build them. One of the first choices you'll face is whether to buy a complete rifle or build one from parts.

Option 1: Buying Complete

Best for: First-time owners and those who want a "grab-and-go" solution.

Buying a Complete AR-15 ensures that all components (upper, lower, buffer system) are factory-tested to work together perfectly. It comes ready to shoot right out of the box (just add an optic!).

Option 2: Building (The PSA Way)

Best for: Customizers and those looking to save money.

By purchasing a Rifle Kit and a Stripped Lower Receiver separately, you can save 11% Federal Excise Tax (FET) and learn exactly how your rifle works. Plus, you get to choose every part, from the trigger to the barrel length.

Understanding Gas Systems: Carbine vs. Mid-Length

The gas system length determines how the rifle cycles. Choosing the right one affects recoil and reliability.

  • Carbine Length (7"): The military standard (M4). It is punchy and reliable but has a sharper recoil impulse. Standard on most 14.5" and 16" barrels.
  • Mid-Length (9"): Rapidly becoming the civilian favorite for 16" barrels. It provides a smoother recoil impulse and less wear on parts because the gas pressure drops slightly before cycling the bolt.
  • Rifle Length (12"): Used on 18" and 20" barrels (like the M16). It offers the smoothest shooting experience possible.

Common Questions About AR-15s

What is the difference between 5.56 NATO and .223 Remington?

While they look identical, 5.56 NATO is loaded to a higher pressure than .223 Remington.
The Rule: You CAN shoot .223 ammo in a 5.56 barrel safely. You generally SHOULD NOT shoot 5.56 ammo in a barrel marked strictly ".223 Remington" (unless it is a .223 Wylde). PSA's 5.56 barrels and Complete Uppers can safely shoot both.

What is a "Mil-Spec" AR-15?

"Mil-Spec" stands for Military Specification. It refers to the materials and dimensions used by the US Military (e.g., 7075-T6 Aluminum for receivers, Carpenter 158 Steel for bolts). A Mil-Spec rifle ensures that you can swap parts with almost any other standard AR-15 on the market.

Can I hunt with an AR-15?

Absolutely. The AR-15 is a "Modern Sporting Rifle." While 5.56 is excellent for varmint hunting (coyotes, hogs), many hunters prefer larger calibers. We offer AR-15s in 6.5 Grendel (great for deer) and .300 Blackout (great for hogs and suppressed hunting).

Is the AR-15 a "Common Use" rifle?

Yes. With over 20 million in circulation, the AR-15 is the most popular rifle in America. Its modularity allows it to be used for home defense, competition, hunting, and recreational target shooting.